CN202648584U - External port free type convergence instrument - Google Patents
External port free type convergence instrument Download PDFInfo
- Publication number
- CN202648584U CN202648584U CN 201220271384 CN201220271384U CN202648584U CN 202648584 U CN202648584 U CN 202648584U CN 201220271384 CN201220271384 CN 201220271384 CN 201220271384 U CN201220271384 U CN 201220271384U CN 202648584 U CN202648584 U CN 202648584U
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- Prior art keywords
- collar extension
- external port
- rod
- connecting link
- extension free
- Prior art date
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- Expired - Fee Related
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- 238000004873 anchoring Methods 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000011435 rock Substances 0.000 description 11
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model relates to an external port free type convergence instrument. The external port free type convergence instrument mainly comprises a deep anchoring base rod, multi-section middle connection rods and an external port free rod, wherein the deep anchoring base rod is in threaded connection with the multi-section middle connection rods, the multi-section middle connection rods are connected with one another end-to-end, the number of the multi-section middle connection rods is determined by depth of a hole, and the external port free rod is connected with the last section of the middle connection rods at a hole port. The rod bodies are anchored into a drilled hole after being sequentially connected and fastened; the hole port is wedged by a wedged guide indication disk, and a certain length of the external port free rod is ensured to be exposed outside; a scale on a surface of the external port free rod which is pointed by an outer edge of the wedged guide indication disk is read as an initial value and then regularly read; and at the end of observation, the surface convergence amount of an alley during observation is obtained by subtracting the initial value from the last value of the scale on the surface of the external free rod. The external port free type convergence instrument has advantages of simple structure, operational convenience, high accuracy, continuous and repeatable measurement, small influence on production, and the like.
Description
Technical field
The utility model relates to collar extension free style convergence instrument, is particularly useful for measuring the inner specific region relative deformation of lane surface displacement and country rock, also is applicable to measure the inner specific region relative deformation situation of country rock, as the dilatational strain of anchorage zone etc.
Background technology
Operation passage and work space that coal mine roadway is important as down-hole, its stability state directly has influence on the normal production of mine and workman's life security.At present, the China's coal-mine development heading is bolt supporting substantially, with traditional shed ding support, compare, bolt supporting belongs to disguised engineering, and internal sabotage is difficult for manifesting, and roof fall accident has sudden, so must carry out daily deformation of the surrounding rock in tunnel monitoring, with judgement roadway support quality and optimization roadway support parameter, guarantee the intact degree of roadway maintenance and the security of work space, more preferably mine highly effective and safe production service.
Lane surface displacement is the core content of coal mine roadway surrouding rock deformation monitoring, its measuring method generally comprises " cross " section, " Lv word " section, " well word " section etc., survey instrument mainly contains steel tape, measuring staff, survey rifle, convergence instrument, Sopwith staff, laser range finder etc., but all operations in tunnel of existing survey instrument and method are normally current larger with work influence to tunnel; Survey station protection difficulty, reliability is low; Measure much time power, workload is larger; Process is affected by human factors larger, repeatable poor, and precision is difficult to guarantee; There is the tunnel that main equipment zone or wind speed are large to be difficult to measure; The measurement the data obtained is that roof and floor, two is helped the relative deformation, can't measure the absolute deformation amount of measuring point; After brush is expanded in tunnel, survey station is destroyed, can't realize expanding the Continuous Observation before and after brushing.Therefore, utilize peripheral superficial part country rock fixedly measuring point carry out observation, be not suitable for engineering-environment and the conditions such as large deformation, loose and soft surrounding rock and deep tunnel.
But still lacking a set of surrouding rock deformation observation little to construction infection, that survey is read conveniently, repeatability is strong, precision is high at present equips and method.The problems affect that existing observation procedure is read to exist on precision in survey the collection of on-the-spot basic data, limited the assurance to the surrouding rock deformation rule, hindered further developing of Roadway Support Technology.
The utility model content
Technical matters: the purpose of this utility model is the deficiency that will overcome in prior art, provide a kind of simple in structure, method is easy, construction infection is little, survey read conveniently, repeatable strong, collar extension free style convergence instrument that precision is high.
Technical scheme: collar extension free style convergence instrument of the present utility model, comprise the deep anchoring base bar in resin anchoring agent is anchored at boring, the more piece middle part connecting link be connected with deep anchoring base bar, described drilling orifice place is provided with the wedge shape guiding display disc of fixing middle part connecting link, and the exposed junction of middle part connecting link is connected with at least one collar extension free bar; Described deep anchoring base bar, the every joint length of more piece middle part connecting link are 1000mm ~ 3000mm, and the every joint length of collar extension free bar is 100mm; The rear portion of described deep anchoring base bar, more piece middle part connecting link and collar extension free bar is equipped with the continued access threaded hole; The front portion of middle part connecting link, collar extension free bar is equipped with and the thread connection head that connects threaded hole and be complementary.
Described collar extension free bar surface indicates scale; Described wedge shape guiding display disc length is 100mm ~ 200mm, and the wedge shape maximum radius of wedge shape guiding display disc is than the large 5 ~ 8mm in aperture of boring, and key groove is 5～10 °.
Beneficial effect: the utility model can effectively solve the survey station of current existence and protect difficulty, is subject to the problems such as human factor affects, precision is low, impact production, improves lane surface displacement measurement efficiency and precision.Can solve well the difficulty run in the observation of coal mine roadway country rock surface displacement and the relative deformation measurement of the inner specific region of country rock.It is simple in structure, construction infection is little, survey is read conveniently, repeatability is strong, precision is high.Concrete advantage is as follows:
1, measurement space is forwarded in the country rock body from tunnel, only expose a small amount of collar extension free bar, do not affect the normal current and work in tunnel;
2, adopt amount of convergence directly to read from collar extension free bar figure, convenient reading, the simple to operate repetition, degree of accuracy is high;
3, can realize being based on the absolute deformation monitoring of travelling trader working on his own, top board, base plate;
4, can realize the continuous modification observation of expansion brush front and back, tunnel by reducing middle part connecting link quantity.
The accompanying drawing explanation
Fig. 1 is collar extension free style convergence instrument structural representation of the present utility model;
The A district enlarged drawing that Fig. 2 is Fig. 1;
Fig. 3 is collar extension free style convergence instrument deep anchoring base bar schematic diagram of the present utility model;
Fig. 4 is collar extension free style convergence instrument of the present utility model middle part connecting link schematic diagram;
Fig. 5 is collar extension free style convergence instrument collar extension free bar schematic diagram of the present utility model.
In figure: 1-deep anchoring base bar, 2-middle part connecting link, 3-collar extension free bar, 4-resin anchoring agent, 5-boring, 6-wedge shape guiding display disc, 7. scale, 8-. threaded hole, 9.-thread connection head.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is further described:
As shown in Figure 1, collar extension free style convergence instrument of the present utility model mainly is comprised of deep anchoring base bar 1, middle part connecting link 2 and collar extension free bar 3.Deep anchoring base bar 1 is 1, length 1000mm ~ 3000mm, anterior with resin anchoring agent 4 with together with boring 5 is anchored at, in the middle part of rear portion and more piece, connecting link 2 is threaded; More piece middle part connecting link 2 be 2 ~ 9 end to end, concrete number determines according to hole depth, every joint length is 1000mm ~ 3000mm; Collar extension free bar 3 is at least one, and length is 100mm, and front portion is threaded with middle part connecting link 2.There is the threaded hole 8 with middle part connecting link 2 coupling head 9 couplings at deep anchoring base bar 1 rear portion, as shown in Figure 3; There is coupling head 9 connecting link 2 front portions, middle part, and there is threaded hole 8 at rear portion, can mutually mate connection, as shown in Figure 4; There is coupling head 9 collar extension free bar 3 front portions, can be connected with middle part connecting link 2 couplings, and there is threaded hole 8 at rear portion, with next root collar extension free bar 3 coupling head 9, is connected, and collar extension free bar 3 surfaces indicate scale 7, as shown in Figure 5.The place, aperture of boring 5 is provided with the wedge shape guiding display disc 6 of fixing middle part connecting link 2, and wedge shape guiding display disc 6 length are 100mm ~ 200mm, and the wedge shape maximum radius of wedge shape guiding display disc 6 is than the large 5 ~ 8mm in aperture of boring 5, and key groove is 5～10 °.
Claims (3)
1. a collar extension free style convergence instrument, comprise the deep anchoring base bar (1) in resin anchoring agent (4) is anchored at boring (5), the more piece middle part connecting link (2) be connected with deep anchoring base bar (1), it is characterized in that: place, described boring (5) aperture is provided with the wedge shape guiding display disc (6) of fixing middle part connecting link (2), and the outer end of middle part connecting link (2) is connected with at least one collar extension free bar (3); Described deep anchoring base bar (1), the every joint length of more piece middle part connecting link (2) are 1000mm ~ 3000mm, and the every joint length of collar extension free bar (3) is 100mm; The rear portion of described deep anchoring base bar (1), more piece middle part connecting link (2) and collar extension free bar (3) is equipped with continued access threaded hole (8); The front portion of middle part connecting link (2), collar extension free bar (3) is equipped with and the thread connection head (9) that connects threaded hole (8) and be complementary.
2. collar extension free style convergence instrument according to claim 1, it is characterized in that: described collar extension free bar (3) surface indicates scale (7)
.
3. collar extension free style convergence instrument according to claim 1, it is characterized in that: described wedge shape guiding display disc (6) length is 100mm ~ 200mm, the wedge shape maximum radius of wedge shape guiding display disc (6) is than the large 5 ~ 8mm in aperture of boring (5), and key groove is 5～10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271384 CN202648584U (en) | 2012-06-11 | 2012-06-11 | External port free type convergence instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271384 CN202648584U (en) | 2012-06-11 | 2012-06-11 | External port free type convergence instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202648584U true CN202648584U (en) | 2013-01-02 |
Family
ID=47417681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220271384 Expired - Fee Related CN202648584U (en) | 2012-06-11 | 2012-06-11 | External port free type convergence instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202648584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679840A (en) * | 2012-06-11 | 2012-09-19 | 中国矿业大学 | External port free type convergence instrument and measurement method thereof |
-
2012
- 2012-06-11 CN CN 201220271384 patent/CN202648584U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679840A (en) * | 2012-06-11 | 2012-09-19 | 中国矿业大学 | External port free type convergence instrument and measurement method thereof |
| CN102679840B (en) * | 2012-06-11 | 2015-08-19 | 中国矿业大学 | External port free type convergence instrument and measuring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20160611 |